CN101573767A - Conductive electric wire and insulating electric wire - Google Patents
Conductive electric wire and insulating electric wire Download PDFInfo
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- CN101573767A CN101573767A CN200780048599.4A CN200780048599A CN101573767A CN 101573767 A CN101573767 A CN 101573767A CN 200780048599 A CN200780048599 A CN 200780048599A CN 101573767 A CN101573767 A CN 101573767A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention discloses a conductive electric wire and an insulating electric wire, each of which is improved in the decreased strength due to the weight reduction or diameter reduction and has excellent corrosion resistance and excellent recycle property. The conductive electric wire can be produced by twisting a first element wire comprising pure metal copper and a second element wire comprisinga copper alloy. Preferably, the first element wire has a cross-section area ranging from 10 to 90% relative to the entire cross-section area of the conductive electric wire. The copper alloy used inthe conductive electric wire may be a Cu-Ni-Si alloy, a copper alloy containing Sn, Ag, Mg or Zn or the like. The conductive electric wire may be compressed roundly. The insulating electric wire can be produced by covering the outer periphery of the conductive electric wire with an insulating material.
Description
Technical field
The present invention relates to wire conductor and insulated electric conductor, relate more specifically to be suitable for the wire conductor and the insulated electric conductor of automobile electric wire.
Background technology
Usually, for vehicle such as automobile and the used insulated electric conductor of electric/electronic, be extensive use of such insulated electric conductor, described insulated electric conductor comprises by the stranded many conductors that the baseline of being made by fine copper such as tough pitch copper prepares.
Recently, the performance of vehicle such as automobile and electric/electronic has obtained quick improvement, and the quantity that this has increased wherein used various control circuits He other parts is accompanied by this increase, and the radical of wherein used insulated electric conductor also increases.
At automotive field, from energy-conservation viewpoint, the expectation vehicle weight alleviates.Therefore, as the part that vehicle weight alleviates, attempt to realize the weight saving of insulated electric conductor.For example, by reduce comprising the wire conductor diameter, realized the weight saving of conventional insulated electric conductor, because described conventional insulated electric conductor has enough current-carrying capacities.
Yet problem is when reducing the diameter of wire conductor, the intensity decreases of insulated electric conductor.Therefore, attempt to improve the intensity of the insulated electric conductor of the wire conductor that comprises that diameter reduces.
For example, Japanese patent application examine to be announced the conductor that discloses automobile electric wire 2004～No. 207079, and it prepares by making up stranded many baselines of being made by stainless steel and the baseline that is made of copper.
Summary of the invention
The problem to be solved in the present invention
Yet, keep moist for a long time if make by making up the wire conductor that stranded stainless steel baseline and copper baseline prepare, may set up galvanic corrosion in the wire conductor.Therefore in addition, in the regenerative process of insulated electric conductor, be difficult to stainless steel and copper in the separate wires conductor,, produced the problem that insulated electric conductor is difficult to be regenerated as iron type materials because stainless steel in the wire conductor and copper are respectively iron type materials and non-ferrous metal material.The problem that insulated electric conductor is difficult to be regenerated as non-ferrous metal has also appearred, because the purity of non-ferrous metal is low.
The purpose of this invention is to provide wire conductor and insulated electric conductor, their corrosion resistance and reproducibility excellence have been improved the wire conductor that reduces to descend because of weight saving and diameter and the intensity of insulated electric conductor.
The means of dealing with problems
In order to realize purpose of the present invention and according to target of the present invention, the wire conductor of the preferred embodiment for the present invention comprises twisted wire, described twisted wire comprises first baseline of being made by fine copper (elemental wire) and second baseline of being made by copper alloy.
In this case, wish that the cross-sectional area of described first baseline is in 10～90% scope as the percentage that accounts for the cross-sectional area of wire conductor.
It is the Si of 0.4～0.6 quality % and the remainder that comprises Cu and unavoidable impurities in fact that described copper alloy preferably comprises Ni, content that content is 1.5～4.0 quality %.
Perhaps, described copper alloy preferably comprises more than one elements that are selected from Sn, Ag, Mg and Zn, and the total content of wherein said more than one elements is 0.15～1.0 quality %, and remainder comprises Cu and unavoidable impurities in fact.
Described wire conductor preferably is used in particular for the cross-sectional area 0.5mm of wire conductor
2Following thin electric wire.
In addition, described wire conductor can be by circular compression.
Simultaneously, the insulated electric conductor of the preferred embodiment for the present invention comprises the said wires conductor.
The invention effect
The wire conductor of the preferred embodiment for the present invention comprises first baseline made by fine copper and the twisted wire of second baseline made by copper alloy, compares with the conventional wire conductor of the twisted wire that only comprises the baseline of being made by fine copper, and it has improved intensity.Therefore, can improve the intensity of the wire conductor of the preferred embodiment for the present invention that reduces to descend because of weight saving and diameter.In addition, because the electric conductivity of fine copper is better than copper alloy, thereby can improve the allowable current of the wire conductor of the preferred embodiment for the present invention, because described wire conductor has the lower conductor resistance of wire conductor than the twisted wire that only comprises the baseline of being made by copper alloy.
The standard electrode potential difference of making the fine copper of first baseline and making between the copper alloy of second baseline is little, thereby moist even wire conductor keeps for a long time, also can not set up galvanic corrosion easily, so the excellent corrosion resistance of wire conductor.In addition, because first baseline and each free copper-based material of second baseline make, so wire conductor can be regenerated as copper-based material and need not and separate, so the reproducibility excellence of wire conductor.
In this case, if as the percentage that accounts for the cross-sectional area of wire conductor, the cross-sectional area of first baseline is in 10～90% scope, and then wire conductor has obtained to improve the advantage of intensity, and the conductivity excellence.
If it is the Si of 0.4～0.6 quality % and the remainder that comprises Cu and unavoidable impurities in fact that described copper alloy comprises Ni, content that content is 1.5～4.0 quality %, then wire conductor has obtained to improve the advantage of intensity, and the conductivity excellence.
Perhaps, if described copper alloy comprises more than one elements that are selected from Sn, Ag, Mg and Zn, the total content of wherein said more than one elements is 0.15～1.0 quality %, and remainder comprises Cu and unavoidable impurities in fact, then wire conductor has obtained to improve the advantage of intensity, and the conductivity excellence.
Because it is 0.5mm that described wire conductor can be used for cross-sectional area
2Therefore following thin electric wire can realize the weight saving of insulated electric conductor in the automotive field for example.
In addition, if described wire conductor by circular compression, has then reduced the gap between the baseline.Therefore, when when same cross section is seen, can reduce the diameter of compression wire conductor.
Simultaneously, because the insulated electric conductor of the preferred embodiment for the present invention comprises the said wires conductor, therefore described insulated electric conductor intensity height, and tolerance corrosion deterioration.Thus, the described insulated electric conductor cross-sectional area that is suitable as wire conductor is for example 0.5mm
2Following thin electric wire.Therefore, described insulated electric conductor is used for for example automotive field, can helps vehicle weight to alleviate.
Description of drawings
Figure 1A to 1D is the sectional view of the wire conductor of the preferred embodiment for the present invention, and each free seven foundation line of wherein said wire conductor constitute;
Fig. 2 A to 2D is the sectional view of the wire conductor of the preferred embodiment for the present invention, and each free 19 foundation line of wherein said wire conductor constitute;
Fig. 3 A to 3D is the sectional view of wire conductor shown in Figure 1A to 1D, and wherein said wire conductor is by circular compression; With
Fig. 4 A to 4C is the sectional view of the wire conductor of another execution mode of the present invention, and wherein said wire conductor is by circular compression.
Embodiment
The detailed description of the preferred embodiment for the present invention will be provided now.In the following description, each percentage composition that constitutes element refers to mass percent.
The wire conductor of the preferred embodiment for the present invention prepares by stranded first baseline of being made by fine copper with by second baseline that copper alloy is made.Described wire conductor by first baseline more than one and more than one second baseline constitute.
The purity of making the fine copper of first baseline is more than 99.9%, and its example comprises tough pitch copper, oxygen-free copper and phosphorized copper.Wherein, preferred tough pitch copper aspect low price, preferred oxygen-free copper aspect difficult generation hydrogen embrittlement is because only contain the oxygen of trace in its copper.
For first baseline of making by fine copper, preferably use the electric copper cash of using of JIS C3102 regulation.
The copper alloy of making second baseline is not specifically limited, and its example comprises the Cu-Ni-Si alloy and contains the copper alloy of Sn, Ag, Mg or Zn.
It is that 1.5～4.0% Ni, content are 0.4～0.6% Si and the remainder that comprises Cu and unavoidable impurities in fact that described Cu-Ni-Si alloy preferably comprises content.It is that 2.0～3.0% Ni and content are 0.4～0.6% Si that described Cu-Ni-Si alloy more preferably comprises content.
This be because if Ni be lower than 1.5% or Si be lower than 0.4%, the advantage of then improving wire conductor intensity is lowered easily.On the other hand, if Ni surpass 4.0% or Si surpass 0.6%, then be easy to improve the conductor resistance of wire conductor, make the allowable current of the electric wire that comprises described wire conductor descend, electric wire is difficult for being used as power line thus.
The copper alloy of the described Sn of comprising, Ag, Mg or Zn can comprise only a kind of in these metallic elements and the remainder that comprises Cu and unavoidable impurities in fact.Perhaps, described copper alloy can comprise and surpass a kind of these metallic elements, and the remainder that comprises Cu and unavoidable impurities in fact.The total content that adds a kind of in the copper alloy to or surpass a kind of metallic element is preferably in the scope of 0.15～1.0 quality %.
This is that the advantage of then improving wire conductor intensity is lowered easily because if total content is lower than 0.15 quality %.On the other hand, if total content surpasses 1.0 quality %, then be easy to improve the conductor resistance of wire conductor, the feasible allowable current of the electric wire of described wire conductor that comprises is easy to descend, and makes electric wire be difficult for being used as power line thus.
Described wire conductor is the combination of first baseline and second baseline.If the ratio of first baseline in combination of being made by fine copper is bigger, then be easy to improve the conductivity of wire conductor, but the intensity of wire conductor is easy to descend.On the other hand,, then be easy to improve the intensity of wire conductor, but its conductivity is easy to descend if the ratio of second baseline in combination of being made by copper alloy is bigger.Therefore, consider conductivity and the advantage of improving intensity, preferred compositions first and second baselines.
The schedule of proportion of first baseline is shown as the first baseline cross-sectional area that accounts for the percentage of wire conductor cross-sectional area.The cross-sectional area of first baseline refers to described whole cross-sectional areas of first baseline more than.
As the percentage that accounts for the wire conductor cross-sectional area, the cross-sectional area of first baseline is preferably in 10～90% scope, more preferably in 40～70% scope.This is because if as the percentage that accounts for the cross-sectional area of wire conductor, the cross-sectional area of described first baseline is less than 10%, then the conductor resistance of wire conductor is easy to rise, and the feasible allowable current of the electric wire of described wire conductor that comprises is easy to descend, and makes electric wire be difficult for being used as power line thus.On the other hand, if it surpasses 90%, the advantage of then improving wire conductor intensity is lowered easily.
Consider the current capacity of electric wire under as the situation of power line for example, described wire conductor preferably has the above conductivity of 45%IACS.In addition, consider the intensity of described wire conductor, it preferably has above hot strength of 300Mpa and 5% above elongation at break.
The cross-sectional area of whole wire conductor is not specifically limited, and is preferably 0.5mm
2Below.This is because by the wire conductor diameter is reduced, and can realize the weight saving of electric wire.In addition, even diameter reduces, described wire conductor still can be owing to the advantage of improving intensity keeps intensity.Note 0.5mm
2It is the nominal cross-sectional area.
The cross-sectional area of the radical of baseline and every foundation line is not specifically limited.Unique requisite be that the ratio that consider first baseline is as mentioned above selected radical and cross-sectional area, first and second baselines should be made up then.
If comprise second baseline more than two in the wire conductor, then they can be second baselines of the same kind made by the copper alloy of same composition, the dissimilar baseline that perhaps described second baseline can be made by the copper alloy that difference is formed.
Next, will provide the more specifically description of structure of wire conductor referring to figs. 1A to 4C.In addition, in Figure 1A to 4C, the cross-sectional area of supposing first baseline and second baseline is same size entirely.
In Figure 1A to 1D, shown the wire conductor that each free seven foundation line constitutes.In this case, unique requisite be that each wire conductor should comprise at least one first baseline and at least one second baseline.Preferred each wire conductor comprises two to five first baselines.
Wire conductor 10a shown in Figure 1A is the combination of five first baselines 12 and two second baselines 14.With first baseline, 12 centres, and second baseline 14 put by symmetric position with respect to first baseline 12.Wire conductor 10b shown in Figure 1B is the combination of four first baselines 12 and three second baselines 14.With one first baseline 12 centres, and with other three first baselines 12 and three second baselines 14 alternately put into encirclement described in the first intracardiac baseline 12.
In Fig. 2 A to 2D, shown the wire conductor that each free 19 foundation line constitutes.Unique requisite be that each wire conductor should comprise at least two first baselines 12 and at least two second baselines 14.Preferred each wire conductor comprises six to 15 first baselines.
In addition, wire conductor can be carried out circular compression.Can preferably carry out circular compression through compression mould by the wire conductor that makes twisted state.
In Fig. 3 A to 3D, shown that each free seven foundation line constitutes and by the wire conductor of circular compression.In the wire conductor shown in Fig. 3 A to 3D the combination radical of first baseline 12 and second baseline 14 with put identical with the wire conductor shown in Figure 1A to 1D respectively.In addition, the baseline cross-sectional area size of wire conductor shown in Fig. 3 A to 3D is identical with the wire conductor shown in Figure 1A to 1D.
Compare with the wire conductor 10a to 10d shown in Figure 1A to 1D, in each the wire conductor 30a to 30d shown in Fig. 3 A to 3D, reduced gap between the baseline by circular compression.Therefore, the diameter integral of each wire conductor 30a to 30d of circular compression has descended.
In Fig. 4 A to 4C, shown that each free 11 foundation line constitutes and by the wire conductor of circular compression.Wire conductor 40a shown in Fig. 4 A is the combination of eight first baselines 12 and three second baselines 14.Three second baselines 14 are put into the center, and with eight first baselines 12 put into encirclement described in the second intracardiac baseline 14.Wire conductor 40b shown in Fig. 4 B is the combination of four first baselines 12 and seven second baselines 14.Three second baselines 14 are put into the center, and with four second baselines 14 of four first baselines 12 and other alternately put into encirclement described in the second intracardiac baseline 14.
Putting of first baseline 12 and second baseline 14 is not limited to putting shown in Figure 1A to 4C, but preferred first baseline 12 and second baseline 14 put by symmetric position in each wire conductor, shown in Figure 1A to 4C.This is to have brought on the whole wire conductor because the advantage of improving intensity of second baseline 14 because of giving in the mode of balance.In addition, the combination radical of the radical of wire conductor baseline and first baseline 12 and second baseline 14 is not limited to the combination radical of wire conductor shown in Figure 1A to 4C.
Though in Figure 1A to 4C, suppose that the cross-sectional area of first baseline 12 and second baseline 14 is identical size, the invention is not restricted to this.The cross-sectional area of also preferred first baseline 12 differs from one another, and the cross-sectional area of second baseline 14 also differs from one another.Yet, the cross-sectional area that also preferred first baseline 12 has identical size, the cross-sectional area that second baseline 14 also has identical size, and the cross-sectional area of first baseline 12 is different from the cross-sectional area of second baseline 14.
Next, the description of a kind of exemplary method of preparation said wires conductor will be provided.
Preferably constitute first baseline of wire conductor by following operation preparation: with the cathode copper fusion and with its casting and rolling to prepare wire rod, then with wire rod cold working to have required diameter.Can preferably use continuous casting and roll mill to cast continuously with rolling.
If second baseline is made by the Cu-Ni-Si alloy, then it is preferably by following operation preparation: will be prepared into the motlten metal that each composition has the copper alloy of required percentage and solidify rapidly, to melt metal carry out cold rolling with the preparation wire rod, then wire rod is carried out cold working to have required diameter.Can preferably use the batch (-type) continuous casting machine that wherein utilizes the water-cooled mould to carry out the rapid curing of copper alloy motlten metal.
Perhaps, if second baseline is to be made by the copper alloy that comprises Sn, Ag, Mg or Zn, then it is preferably by following operation preparation: with the cathode copper fusion, metal such as Sn are added in the cathode copper of fusion, make metal have required percentage, with cathode copper casting and rolling, then wire rod is carried out cold working to have required diameter to produce wire rod.Similar to first baseline, can preferably use continuous casting and roll mill to cast continuously with rolling.At this moment, the metal that can will add in the continuous casting process is added continuously in the cathode copper, makes metal have required percentage.
By stranded first baseline and second baseline of preparation thus, the preparation wire conductor, the number of combinations of first baseline and second baseline is selected like this, makes first and second baselines have required ratio.In addition, if necessary, can heat-treat to carry out finally modified to the wire conductor of preparation thus.
Can use various types of softening furnaces to carry out with final modified heat treatment as purpose.The type of softening furnace is not specifically limited, as long as wire conductor obtains required performance.Softening furnace can be the batch (-type) softening furnace, perhaps can be the continous way softening furnace.The example of batch (-type) softening furnace comprises the bell-jar softening furnace.The example of continous way softening furnace comprises the continuous softening furnace of conduction-type, the continuous softening furnace of tubular type and the continuous softening furnace of high frequency.
Next, the description of the insulated electric conductor of the preferred embodiment for the present invention will be provided.
By covering the insulated electric conductor that the said wires conductor prepares the preferred embodiment for the present invention with insulator.Described insulator can be by one deck or two-layer above formation.When insulator layer when forming more than two-layer, described layer can be identical type, perhaps can be different types.
The example of insulator comprises polyvinyl chloride, polyethylene, polypropylene and fluororesin such as PFA resin, ETFE (ethylene-tetrafluoroethylene copolymer) resin and FEP (ethylene fluoride-propylene) resin.The thickness that covers insulator is not specifically limited.
Can in insulator, add various additives where necessary.The example of additive comprises antioxidant, metal deactivator and processing aid (for example lubricant, wax).
Can prepare above-mentioned insulated electric conductor by following operation: preferably use common mixing roll as banbury mixers, pressure mixing roll and roll with as described in composition carry out mixingly, preferably use common extrusion shaper wire conductor to be extruded covering with the composition of insulator.
Embodiment
Specifically provide description of the invention referring now to embodiment; Yet, the invention is not restricted to this.
(electric preparation) with copper cash
Prepare the electric copper cash of using by following operation: also use casting and roll mill with its continuous casting and rolling wire rod the cathode copper fusion, then wire rod is carried out the cold line stretch process to have required diameter with preparation diameter 8mm.
(preparation of Cu-Ni-Si alloy wire)
Be prepared as follows various copper alloy wires with required diameter.Use the batch (-type) continuous casting machine wherein utilize the water-cooled mould will be prepared into the motlten metal that each composition has the copper alloy of the required percentage shown in the table 1 and solidify fast, obtain the wire rod of diameter 24mm.Then, wire rod is carried out cold rolling, obtain the wire rod of diameter 8mm.Then, wire rod is carried out the cold line stretch process to obtain to have the copper alloy wire of required diameter.
(comprising the preparation of the copper alloy wire of Sn, Ag, Mg or Zn)
Be prepared as follows various copper alloy wires with required diameter.With the cathode copper fusion, be added continuously in the cathode copper so that element has the required percentage shown in the table 1 adding element simultaneously, and use casting and roll mill that cathode copper is cast continuously and rolling wire rod with acquisition diameter 8mm.Then, wire rod is carried out the cold line stretch process to obtain to have the copper alloy wire of required diameter.
(embodiment 1)
The wire conductor for preparing embodiment 1 by following operation: stranded three electric with copper cash and four Cu-Ni-Si alloy wires, and twisted wire is modified to carry out 440 ℃ of heat treatments 8 hours.By following assay method, measure hot strength, elongation at break and the conductivity of made wire conductor.In addition, estimate the corrosion resistance of wire conductor based on the standard electrode potential difference between the material of making wire conductor, and based on the reproducibility of the evaluation of material wire conductor of making wire conductor.It the results are shown in table 1.
(embodiment 2)
The wire conductor for preparing embodiment 2 by following operation: stranded two electric with copper cash and five Cu-Ni-Si alloy wires, and twisted wire is modified to carry out 400 ℃ of heat treatments 8 hours.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
(embodiment 3)
The wire conductor for preparing embodiment 3 by following operation: stranded 13 electric with copper cash and six roots of sensation Cu-Ni-Si alloy wires, and twisted wire is modified to carry out 380 ℃ of heat treatments 8 hours.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
(embodiment 4 to 7)
Each wire conductor for preparing embodiment 4 to 7 by following operation: stranded three electricly comprise a kind of copper alloy wire that adds element shown in the table 1 with copper cash and four, and twisted wire is modified to carry out 380 ℃ of heat treatments 8 hours.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
(comparative example 1)
By stranded seven electric copper cash of using, and twisted wire is softening continuously, the wire conductor of preparation comparative example 1.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
(comparative example 2)
By stranded eight electric copper cash and stainless steel wires used, and twisted wire is softening continuously, the wire conductor of preparation comparative example 2.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
(comparative example 3)
By stranded seven copper alloy wires that comprise the interpolation element shown in the table 1, and 480 ℃ twisted wire heat treatment 8 hours is modified to carry out, the wire conductor of preparation comparative example 3.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
(comparative example 4)
By stranded seven copper alloy wires that comprise the interpolation element shown in the table 1, the wire conductor of preparation comparative example 4.Wire conductor is not heat-treated.Measure and estimate wire conductor according to the mode identical with embodiment 1.It the results are shown in table 1.
Hot strength
Measure hot strength by common tensile strength test instrument.The above hot strength of 300Mpa is considered to qualified.
Elongation at break
Measure elongation at break by common tensile strength test justice.Elongation at break more than 5% is considered to qualified.
Conductivity
Logical bridge passing through method is measured conductivity.The above conductivity of 45%IACS (International Annealed Copper Standard) is considered to qualified.
According to table 1, show that the wire conductor of comparative example all exists defective at some assessment items of hot strength, elongation at break, conductivity, corrosion resistance and reproducibility.
Particularly, the wire conductor of comparative example 1 only is made of with copper cash electric, thus its poor tensile strength, but elongation at break, conductivity, corrosion resistance and reproducibility excellence.The wire conductor of comparative example 2 is made of with copper cash and stainless steel wire electric, thereby its reproducibility is poor, because it is by dissimilar metal, but the hot strength excellence.In addition, the wire conductor corrosion-resistant of comparative example 2 is because the standard electrode potential difference of wire conductor is big.
The wire conductor of comparative example 3 only is made of copper alloy wire, thereby because high resistance causes electric conductivity difference, but the hot strength excellence.The wire conductor of comparative example 4 also only is made of copper alloy wire, thereby causes the extension at break rate variance because of it not being heat-treated, but the hot strength excellence.
Simultaneously, hot strength, elongation at break, conductivity, corrosion resistance and the reproducibility that shows the wire conductor of present embodiment is all excellent.
That is to say, show suitably to make up strandedly electricly can obtain the hot strength excellence, keep the suitable elongation at break and the wire conductor of conductivity simultaneously that this wire conductor can't electricly obtain with wire conductor by conventionally form is only stranded with copper cash and copper alloy wire.In addition, the excellent corrosion resistance that shows the wire conductor of present embodiment, because the standard electrode potential difference between their copper and the copper alloy is little, and the reproducibility of described wire conductor is also excellent, because their each free copper-based materials are made and can be regenerated as copper-based material and need not to separate.
Therefore, also be for example 0.5mm being used for thin footpath insulated electric conductor such as nominal cross-sectional area by wire conductor with the preferred embodiment for the present invention
2During following electric wire reduces with the weight saving that realizes insulated electric conductor and diameter, can improve the intensity of the insulated electric conductor that reduces to descend because of weight saving and diameter.
The above description that proposes the preferred embodiment for the present invention is for illustration and description; Yet it is not to be intended to exhaustive or to limit the invention to disclosed exact form, and various modifications and variations are possible, as long as they do not deviate from principle of the present invention.
Claims (7)
1. wire conductor that comprises twisted wire, described twisted wire comprises:
First baseline of making by fine copper; With
Second baseline of making by copper alloy.
2. the wire conductor of claim 1, wherein as the percentage that accounts for described wire conductor cross-sectional area, the cross-sectional area of described first baseline is in 10～90% scope.
3. each wire conductor in the claim 1 and 2, wherein said copper alloy comprises:
Content is the Ni of 1.5～4.0 quality %;
Content is the Si of 0.4～0.6 quality %; With
The remainder that comprises Cu and unavoidable impurities in fact.
4. each wire conductor in the claim 1 and 2, wherein said copper alloy comprises:
Be selected from more than one elements of Sn, Ag, Mg and Zn, the total content of wherein said more than one elements is 0.15～1.0 quality %; With
The remainder that comprises Cu and unavoidable impurities in fact.
5. each wire conductor in the claim 1 to 4, the cross-sectional area of wherein said wire conductor is 0.5mm
2Below.
6. each wire conductor in the claim 1 to 5, wherein said wire conductor is by circular compression.
7. insulated electric conductor, it comprises according to each wire conductor in the claim 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006354976A JP2008166141A (en) | 2006-12-28 | 2006-12-28 | Electric wire conductor, and insulation wire |
| JP354976/2006 | 2006-12-28 | ||
| PCT/JP2007/075059 WO2008084704A1 (en) | 2006-12-28 | 2007-12-27 | Conductive electric wire and insulating electric wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101573767A true CN101573767A (en) | 2009-11-04 |
| CN101573767B CN101573767B (en) | 2013-03-06 |
Family
ID=39608598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780048599.4A Expired - Fee Related CN101573767B (en) | 2006-12-28 | 2007-12-27 | Conductive electric wire and insulating electric wire |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US8017869B2 (en) |
| JP (1) | JP2008166141A (en) |
| CN (1) | CN101573767B (en) |
| DE (1) | DE112007003179B8 (en) |
| WO (1) | WO2008084704A1 (en) |
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| CN103366857A (en) * | 2013-07-12 | 2013-10-23 | 深圳市雨新电线电缆有限公司 | Copper ferronickel cable strong in flexural endurance |
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- 2007-12-27 WO PCT/JP2007/075059 patent/WO2008084704A1/en active Application Filing
- 2007-12-27 US US12/448,168 patent/US8017869B2/en not_active Expired - Fee Related
- 2007-12-27 CN CN200780048599.4A patent/CN101573767B/en not_active Expired - Fee Related
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2011
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Also Published As
| Publication number | Publication date |
|---|---|
| US8017869B2 (en) | 2011-09-13 |
| DE112007003179B8 (en) | 2014-12-18 |
| DE112007003179T5 (en) | 2009-11-26 |
| US8519269B2 (en) | 2013-08-27 |
| US20110247857A1 (en) | 2011-10-13 |
| CN101573767B (en) | 2013-03-06 |
| JP2008166141A (en) | 2008-07-17 |
| DE112007003179B4 (en) | 2014-09-11 |
| US20100018745A1 (en) | 2010-01-28 |
| WO2008084704A1 (en) | 2008-07-17 |
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